با سلام خدمت دوستان و اساتید محترم من مدتی هست که این ماژول 2.4G Wireless NRF24L01 PA LNA Board Module تقویت شده با برد 1100 متر رو از یکی از فروشگاههای الکترونیکی خریداری کردم و می خوام ازش استفاده خونگی داشته باشم در واقع برای سوئیچ کردن کلید های خونه (فرستنده این تقویت شدهس گیرنده هم ازین معمولی ها). از اونجایی که این یک ماژول تقویت شده با آنتن 5db هست می تونه اثرات مخربی رو انسان داشته باشه؟ راه حلش چیه؟
کد:
Overview The nRF24L01 module is the latest in RF modules from SparkFun. This module uses the 2.4GHz transceiver from Nordic Semiconductor, the nRF24L01+. This transceiver IC operates in the 2.4GHz band and has many new features! Take all the coolness of the nRF2401A and add some extra pipelines, buffers, and an auto-retransmit feature - very nice! This board features a reverse polarized SMA connector for maximum RF range. And there are PA and LNA circuit on board, with the external antenna it can reach long distance than the one without these parts. This module comes with the 2.4G antenna (2DB), with 250Kbps transmission rate on open air it can reach the 800-1K meters communication distance. Note: We now populate these boards with the nRF24L01+. The '+' version of the IC has improved range, sensitivity, and data rates. The command set is backward compatible with the original nRF24L01. Features Voltage: 3-3.6V (recommended 3.3V) V Maximum output power: +20dBm Emission mode current(peak): 115mA Receive Mode Current(peak): 45mA Power-down mode current: 4.2uA Sensitivity 2Mbps mode in received: -92dBm Sensitivity 1Mbps mode in received: -95dBm Sensitivity 250kbps mode in received: -104dBm PA gain: 20DbLNA gain: 10Db LNA Noise figure: 2.6Db Antenna Gain (peak): 2Dbi 2MB rate (Open area): 520m 1MB rate (Open area): 750m 250Kb rate (Open area): 1000m

دیدگاه